using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Login
{
    class Program
    {

        static void Main(string[] args)

        {

            string username = Console.ReadLine();
            string password = Console.ReadLine();


            char[] reverse = username.ToCharArray();
            Array.Reverse(reverse);
            string reversed = new string(reverse);


            if (reversed == password)
            {
                Console.WriteLine($"User {username} logged in.");
            }

            else
            {
                for (int count = 0; count < 4; count++)
                {
                    Console.WriteLine("Incorrect password. Try again.");
                    password = Console.ReadLine();

                    if (reversed == password)
                    {
                        Console.WriteLine($"User {username} logged in."); break;
                    }

                    else if (count >= 2)
                    {
                        Console.WriteLine($"User {username} blocked!"); break;
                    }
                }
            }

        }
    }
}